One character, the robot-like "Robowaru," has two swastikas on its chest and can be bought in the UK for around £2.60 with any purchase of six bottles of Coke.

The figurines stand on small plastic pedestals with Coca-Cola logos on them.

"It's not simply a politically incorrect symbol," Rabbi Kermaier said. "It's an emblem that represents the wholesale slaughter of six million Jews."

Rabbi Kermaier acknowledged the Nazi swastika can easily be confused with Buddhist swastikas that are common in Asia. The two symbols are close to being reverse images of one another, with the arms pointing in opposite directions.

Coca-Cola says the figurines were made according to the original Robowaru design, but a spokeswoman declined any other immediate comment.

Animation International, which sells rights for Robocon and worked with Coca-Cola on the toys, says the symbols were designed by the creator and "did not have anything to do with any organisation or religion."